Pennsylvania State Police say car accidents killed seven people and injured 315 others over the long holiday weekend.
 
From Dec. 21 through Christmas, state police investigated 1,336 crashes.
 
Of those, 108 were alcohol-related, 2 of the seven people who died were not wearing seat belts and one fatality stemmed from an alcohol-related accident.
 
Troopers made 348 arrests for driving under the influence and issued 2,152 speeding citations.
 
Crash and casualty numbers are up from 2011, but the holiday weekend was longer this year.
 
In 2011, authorities reported five people died and 169 others were hurt in 509 crashes.
 
All figures cover only those incidents investigated by state police and don't include statistics on crashes to which other law enforcement agencies responded.